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Moroso 73729 Ultra 40 Spark Plug Wire Set Big Block Chevy Under Header HEI 135 Degree

Manufacturer

Picture for manufacturer Moroso

Part Number

73729
14 reviews
Sale Price

$108.12

In Stock (5)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Moroso 73729 Ultra 40 spark plug wire set delivers race-proven ignition performance in a cost-effective package designed specifically for big block Chevy engines with under-header routing and HEI-style distributors. This complete, ready-to-install wire set features unsleeved construction for applications where heat protection is not required.

Key Features:

  • 8.65mm diameter spiral core wire with 40 ohms of resistance per foot
  • Optimized combination of capacitance, inductance, and resistance for maximum spark energy
  • Superior RFI/EMI electromagnetic interference protection
  • 135-degree spark plug boots for proper under-header clearance
  • HEI-style distributor terminals for direct connection
  • Each wire pre-cut to correct length and labeled for specific cylinder identification
  • Black unsleeved construction
  • Made in the USA

Based on Moroso's race-proven Ultra 40 Race Wire technology used in top-level NASCAR and NHRA applications, this wire set provides professional-grade performance at a budget-friendly price point. The spiral wound conductor design ensures consistent spark delivery while maintaining excellent resistance to electrical interference. Complete with installation instructions and ready to bolt on.

Fast and easy to find my parts and purchase them

This was my first order through autoplicity but I doubt it's my last. They had the best price by far on the K & N air filter I was looking for. The price was right, the filter was packed well, and the shipping was fast. No hassle transaction. Great job autoplicity!

Ordered wrong item. Trying to return.

good job

Just purchased a B&W 5th wheel companion hitch to tow my new camper. Got an awesome price on it and shipping was quick. I would make a purchase again from them and would recommend Autoplicity to a friend. AAAAA++++++++++++ <br><br>Thanks<br><br>Dennis

Went Smoothly

Best price on FX400, smooth easy website.

First time that I have tried Autoplicity. Best price on the brand/part that I really wanted. Fast turnaround, and they have great customer service. Will use again. Highly recomend!

Hope the parts fit

quick and express-like. maybe too expressy

glad you do amazon :D and the redirect was awesome. on amazon I couldn't find the race belt, only found it on your direct site. so far so good :D

Nice.

!!!Thank you!!!

Ordered a set of 5 steel wheels, distributor messed up and only sent me 4. 5th wheel is taking a good couple weeks to arrive due to the distributor messing up the shipment. Autoplicity did make things right and I can honestly say now I would recommend them.

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